• Nutr Metab Cardiovasc Dis · Aug 2015

    Meta Analysis

    Quantitative assessment of the effects of beta-glucan consumption on serum lipid profile and glucose level in hypercholesterolemic subjects.

    • X Zhu, X Sun, M Wang, C Zhang, Y Cao, G Mo, J Liang, and S Zhu.
    • Department of Cardiovascular Medicine, People's Hospital of Gaozhou, Gaozhou 525200, Guangdong, China. Electronic address: Metro1168@hotmail.com.
    • Nutr Metab Cardiovasc Dis. 2015 Aug 1; 25 (8): 714-23.

    Background & AimsA growing body of evidence suggests that beta-glucan derived from oats or barley can reduce cardiovascular disease risk through reductions in serum lipids. However, the effects of beta-glucan on lipid changes in hypercholesterolemic patient groups are inconsistent. The objective of this study was to identify and quantify the effect of beta-glucan, a marker of water-soluble fiber, on various lipid parameters and glucose level in hypercholesterolemic subjects.Methods And ResultsWe performed a comprehensive literature search to identify the relevant randomized controlled trials (RCTs) that investigated the effects of beta-glucan consumption in hypercholesterolemic subjects. Mean differences (MDs) and 95% confidence intervals (CIs) were calculated for net changes in lipid concentrations by using fixed-effects or random-effects models according to heterogeneity. Publication bias, sensitivity analysis and subgroup analyses were also performed. Seventeen eligible RCTs with 916 subjects were included in the meta-analysis. The pooled result showed that beta-glucan consumption in hypercholesterolemic population significantly lowered the total cholesterol (TC) (MD, -0.26 mmol/L; 95% CI, -0.33 to -0.18; P < 0.00001) and low-density lipoprotein (LDL)-cholesterol concentration (MD, -0.21 mmol/L; 95% CI, -0.27 to -0.14; P < 0.00001). However, there were no significant differences in high-density lipoprotein (HDL)-cholesterol, triglycerides (TG) and glucose. No adverse effects were reported among the eligible trials.ConclusionOur meta-analysis showed that beta-glucan consumption significantly decreased TC and LDL-cholesterol concentrations but did not affect TG, HDL-cholesterol, and glucose concentrations in hypercholesterolemic subjects.Copyright © 2015 Elsevier B.V. All rights reserved.

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